1377520356756 has 12 divisors (see below), whose sum is σ = 3214214165792. Its totient is φ = 459173452248.

The previous prime is 1377520356743. The next prime is 1377520356761. The reversal of 1377520356756 is 6576530257731.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1377520356696 and 1377520356705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57396681520 + ... + 57396681543.

Almost surely, 2^{1377520356756} is an apocalyptic number.

It is an amenable number.

1377520356756 is an abundant number, since it is smaller than the sum of its proper divisors (1836693809036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1377520356756 is a wasteful number, since it uses less digits than its factorization.

1377520356756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114793363070 (or 114793363068 counting only the distinct ones).

The product of its (nonzero) digits is 27783000, while the sum is 57.

The spelling of 1377520356756 in words is "one trillion, three hundred seventy-seven billion, five hundred twenty million, three hundred fifty-six thousand, seven hundred fifty-six".